Search a number
-
+
28706513330033 = 7211577697113241
BaseRepresentation
bin1101000011011110000011…
…00001111001111101110001
310202122022112021022202100122
412201233001201321331301
512230311414403030113
6141015331250500025
76021656106166100
oct641570141717561
9122568467282318
1028706513330033
119168400441150
123277621294615
131303021882166
1471358cc76037
1534bac7ad9408
hex1a1bc1879f71

28706513330033 has 48 divisors (see below), whose sum is σ = 36500171254848. Its totient is φ = 22325054976000.

The previous prime is 28706513329981. The next prime is 28706513330059. The reversal of 28706513330033 is 33003331560782.

It is not a de Polignac number, because 28706513330033 - 222 = 28706509135729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28706513330633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2167995293 + ... + 2168008533.

It is an arithmetic number, because the mean of its divisors is an integer number (760420234476).

Almost surely, 228706513330033 is an apocalyptic number.

It is an amenable number.

28706513330033 is a deficient number, since it is larger than the sum of its proper divisors (7793657924815).

28706513330033 is a wasteful number, since it uses less digits than its factorization.

28706513330033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814 (or 20807 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 44.

The spelling of 28706513330033 in words is "twenty-eight trillion, seven hundred six billion, five hundred thirteen million, three hundred thirty thousand, thirty-three".

Divisors: 1 7 11 49 77 539 577 4039 6347 6971 13241 28273 44429 48797 76681 92687 145651 311003 341579 536767 648809 1019557 3757369 4022267 7136899 7640057 28155869 44244937 53480399 84040627 92303011 197091083 309714559 374362793 588284389 646121077 1015333121 2168001913 4117990723 4522847539 7107331847 49751322929 53258837347 372811861429 585847210817 2609683030003 4100930475719 28706513330033